Plush Pet Loo Grass is specific material and fit replacement grass for The Pet Loo.There are many varying types of synthetic grass on the market. The Synthetic grass used for The Pet Loo is of optimum quality to reduce your hassles. After lengthy testing, Pet Loohave ensured that the perforations on the base mat guarantee maximum drainage. The grass only needs to be replaced if you feel it's necessary. Cleaning: Cleaning do's: * Daily:Pour warm water over the grass to flush out any excess urine. * 2-3 times a Week:Spray WEE Care or Kitty Care on the Loo & Grass. Let dry. * Weekly: Remove the grass from the unit and wash it down with mid-pressured water – (Ideally a hose or in the shower until liquid is clear). * Then spray WEE Care or Kitty Care onto the unit + Grass *Air Out/Dry: Please ensure that the grass is dried thoroughly after washing before reusing it on the unit. Cleaning don'ts: Whileevery effort has been madeto create a reliable and hardy product, The Pet Loo and synthetic grass are not 100% bulletproof. Here are some things you should not do when cleaning your Loo: * Do not use bleach * Do not use chemical cleaners * Do not use cleaners or any other product that contains citrus * Do not rinse with boiling water, use only warm tap water * It is important to remember that Wee Care and Kitty Care are the only recommended products for sanitising The Pet Loo and Kitty Kat Pet Loo. SIZES: Small: For the Pet Loo 53cm x 45cm Medium: For The Pet Loo 63cm x 63cm Large: For The Pet Loo 83cm x 83cm